@article{oai:nifs-repository.repo.nii.ac.jp:02000347,
 author = {YANAGIHARA, Yuto and MURASE, Takanori and NOTO, Hiroyuki and OGAWA, Kunihiro and SHIMIZU, Akihiro and ISOBE, Mitsutaka and NAGAHARA, Kazuki and TANOUE, Hiroyuki and NAKAGAWA, Sho and HAYASHI, Yuki and PHAM, Ngat T.H. and SHIOZAKI, Tomohiro and SOGABE, Toshiaki and NISOA, Mudtorlep},
 journal = {New Silica Removal Technique by Vacuum Heating toward High-Performance Cryosorption Pumps Based on Biomass-Based Activated Carbon},
 month = {Feb},
 note = {We developed a new silica (SiO2) removal technique that can maximize biomass-based activated carbon adsorption performance. SiO2 removal is one of the key processes in making activated carbon suitable for cryosorption pumps in fusion machines. In this study, we employed an evaporation process to remove SiO2 by high-temperature vacuum heating. The charcoal made from rice straw was heated at 1800℃ for 1 h at approximately 10 Pa in a vacuum furnace. We found that SiO2 amount was significantly reduced from 15.8 wt% to 4.20 wt% due to vacuum heating. In addition, the result of surface element mapping analysis using energy-dispersive X-ray spectroscopy (EDX) indicated a considerable decrease in the oxygen content of SiO2. We demonstrated the great potential of activated carbon derived from rice straw as an adsorbent for high-performance cryosorption pumps.},
 title = {New Silica Removal Technique by Vacuum Heating toward High-Performance Cryosorption Pumps Based on Biomass-Based Activated Carbon},
 volume = {19},
 year = {2024}
}